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NASA Images
by NASA
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This close-up view of comet Hartley 2 was taken as NASA's EPOXI mission approached the comet at 6:59 a.m. PDT (9:59 a.m. EDT). The spacecraft's Medium-Resolution Instrument snapped the picture from a distance of 816 kilometers (507 miles). The sun is to the right. The comet's nucleus, or main body, is approximately 2 kilometers (1.2 miles) long and .4 kilometers (.25 miles) at the ''neck,'' or most narrow portion. Jets can be seen streaming out of the nucleus. Image credit: NASA/JPL-Caltech/UMD
Topics: What -- Sun, What -- COMETS
Source: http://www.nasa.gov/images/content/496679main_hartley-2-full_full.jpg
NASA Images
by NASA
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This close-up view of comet Hartley 2 was taken as NASA's EPOXI mission approached the comet at 6:58 a.m. PDT (9:58 a.m. EDT). The spacecraft's Medium-Resolution Instrument snapped the picture from a distance of 1,417 kilometers (880 miles). The sun is to the right. The comet's nucleus, or main body, is approximately 2 kilometers (1.2 miles) long and .4 kilometers (.25 miles) at the ''neck,'' or most narrow portion. Jets can be seen streaming out of the nucleus. Image credit:...
Topics: What -- Sun, What -- COMETS
Source: http://www.nasa.gov/images/content/496668main_hartley-1-full_full.jpg
NASA Images
by NASA
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Infrared scans of comet Hartley 2 by NASA's EPOXI mission spacecraft show carbon dioxide, dust, and ice being distributed in a similar way and emanating from apparently the same locations on the nucleus. Water vapor, however, has a different distribution implying a different source region and process. These maps were made from data obtained by the High-Resolution Imager on Nov. 4, 2010. NASA's Jet Propulsion Laboratory, Pasadena, Calif., manages the EPOXI mission for NASA's Science Mission...
Topics: What -- High Resolution Imager, What -- Imager, Where -- Jet Propulsion Laboratory (JPL), Where --...
Source: http://www.nasa.gov/images/content/500759main_pia13628-full_full.jpg
NASA Images
by NASA
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This image shows the nuclei of comets Tempel 1 and Hartley 2, as imaged by NASA's Deep Impact spacecraft, which continued as an extended mission known as EPOXI. Tempel 1 is five times larger than Hartley 2. Visible jets are easily seen in images of Hartley 2, but required extensive processing to be seen in images of Tempel 1. Tempel 1 is 7.6 kilometers (4.7 miles) in the longest dimension. Hartley 2 is 2.2 km (1.4 miles) long. The Tempel 1 image was built up from more than 25 images captured by...
Topics: What -- COMETS, What -- Deep Impact, What -- Impactor, What -- Medium Resolution Imager, What --...
Source: http://www.nasa.gov/images/content/500786main_pia13629-full_full.jpg
NASA Images
by NASA
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This 3-D image shows the entire nucleus of Hartley 2 with jets and an icy particle cloud. Circles have been added to highlight the location of individual particles. The images used to make this 3-D image, known as an anaglyph, were obtained by the Medium-Resolution Imager on Nov. 4, 2010, the day the EPOXI mission spacecraft made its closest approach to the comet. This 3-D image should be seen with blue-red glasses, where the red lens is in front of the left eye. NASA's Jet Propulsion...
Topics: What -- Medium Resolution Imager, What -- Imager, Where -- Jet Propulsion Laboratory (JPL), Where...
Source: http://www.nasa.gov/images/content/500819main_pia13627-full_full.jpg
NASA Images
by NASA
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This image from the High-Resolution Instrument on NASA's EPOXI mission spacecraft shows part of the nucleus of comet Hartley 2. The sun is illuminating the nucleus from the right. A distinct cloud of individual particles is visible. This image was obtained on Nov. 4, 2010, the day the EPOXI mission spacecraft made its closest approach to the comet. NASA's Jet Propulsion Laboratory, Pasadena, Calif., manages the EPOXI mission for NASA's Science Mission Directorate, Washington. The University of...
Topics: What -- Sun, Where -- Jet Propulsion Laboratory (JPL), Where -- Washington, Where -- Maryland
Source: http://www.nasa.gov/images/content/500747main_pia13622-full_full.jpg
NASA Images
by NASA
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The Medium-Resolution Instrument on NASA's EPOXI mission spacecraft obtained these views of the icy particle cloud around comet Hartley 2. The image on the left is the full image of comet Hartley 2 for context, and the image on the right was enlarged and cropped. The images confirm that the particles seen in the High-Resolution Instrument images are real and not artifacts. This image was obtained on Nov. 4, 2010, the day the EPOXI mission spacecraft made its closest approach to the comet....
Topics: Where -- Jet Propulsion Laboratory (JPL), Where -- Washington, Where -- Maryland
Source: http://www.nasa.gov/images/content/500808main_pia13624-full_full.jpg
NASA Images
by NASA
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This movie made from images obtained by NASA's EPOXI mission spacecraft shows an active end of the nucleus of comet Hartley 2. Icy particles spew from the surface. The specks move as the movie toggles back and forth. Most of these particles are traveling with the nucleus. They are fluffy ''snowballs'' about 3 centimeters to 30 centimeters (1 inch to 1 foot) across. The images for the movie were obtained by the Medium Resolution Imager on Nov. 4, 2010, the day the EPOXI mission spacecraft made...
Topics: What -- Medium Resolution Imager, What -- Imager, Where -- Jet Propulsion Laboratory (JPL), Where...
Source: http://www.nasa.gov/images/content/500917main_pia13625-full_full.jpg
NASA Images
by NASA
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This movie shows the motion of some icy particles in the cloud around Hartley 2, as seen by NASA's EPOXI mission spacecraft. A star moving through the background is marked with red and moves in a particular direction and with a particular speed, while the icy particles move in random directions. The icy particles are marked in green, blue and light blue. The images for the movie were obtained by the Medium-Resolution Imager on Nov. 4, 2010, the day the EPOXI mission spacecraft made its closest...
Topics: What -- Medium Resolution Imager, What -- Imager, Where -- Jet Propulsion Laboratory (JPL), Where...
Source: http://www.nasa.gov/images/content/500771main_pia13626-full_full.jpg
NASA Images
by NASA
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This zoomed-in image from the High-Resolution Instrument on NASA's EPOXI mission spacecraft shows the particles swirling in a ''snow storm'' around the nucleus of comet Hartley 2. Scientists estimate the size of the largest particles ranges from a golf ball to a basketball. They have determined these are icy particles rather than dust. The particles are believed to be very porous and fluffy. The sun is illuminating the nucleus from the right. This image was obtained on Nov. 4, 2010, the day the...
Topics: What -- Sun, Where -- Jet Propulsion Laboratory (JPL), Where -- Washington, Where -- Maryland
Source: http://www.nasa.gov/images/content/500797main_pia13623-full_full.jpg